Answer:
So in this question we are given two number lines that represent the ratio between yards and miles. We are supposed to use these number lines to help us determine how many yards are in 4 miles. This makes our first step to determine how many yards are in a mile.
After completing that part we can see that each mile is 1760 yards. Now that we have done that we can multiply it by 4 miles which will cancel the bottom miles with the miles on the top and leave us with just yards.
Therefore, our final answer is that there is 7040 yards in 4 miles.
Hope this helps! Let me know if you have any questions